material features, masonry, scope + Video

material features, masonry, scope + Video White cement - composition, application, where to buy. If you are curious about which one is best to choose from the vast array of white cements available at any hardware store, you should read this article. Together with gray cement, there is also white cement on sale, which differs not only in color, but also in cost. You will learn what white cement is, what advantages it has and what to use it for.

So you will find out whether this material is suitable for the work that you have planned to perform or not.

Description

The distinctive characteristics of the material are:

  1. White color. In building materials, light shades are achieved due to the peculiarities of the composition of raw materials and a special production technology.
  2. Main component. The main component of the material is low-iron clinker, to which crushed gypsum, kaolin, limestone (crushed) and chloric salt are added in clear proportions and consistency.
  3. Component combination.

    The characteristic white color comes from the combination of chalk and kaolin. With the right choice of raw materials, in particular components, the finished material contains very little manganese and coloring oxides.

  4. Strength. White Portland cement differs from gray cement by a high level of compressive strength (up to 60 MPa). This strength is achieved due to the sharp cooling of the clinker-type mass after firing in an environment in which there is no oxygen.

Please note, that when burning clinker in the kiln, oil or gas burners are used, when using which, soot and ash do not appear. This is a rather important condition, since if the technology is followed, white cement M500 with a characteristic color is obtained.

In accordance with the strength parameters, there are:

According to the reflectance (degree of whiteness), the material is divided into three grades:

  • The first is from 79 to 85%.
  • Second - 74%.
  • Third - 67%.

Belonging to one of the described varieties and degrees of whiteness are indicated on the package. The scope of application, the cost of the material and the final type of products, which are made of the selected cement, will depend on this.

Now in building markets you can buy Turkish white cement brand M600 "super white", the reflection coefficient of which (!) Is 90%. For a bag of 50 kg, you will have to pay from 750 to 800 rubles.

How to do it yourself

White cement diluted with water is not used in construction by itself, since such a layer after laying will soon cracks. For this reason, a filler should be prepared. The problem is that ordinary white sand will not work for a solution, and even a seeded one may have a small amount of clay impurities that can color the solutions.

In order to use white cement for finishing it was possible to purchase a special filler.

Important! To avoid mistakes when choosing a filler, take a few types of backfill in small quantities for a sample. After that, prepare several solutions with your own hands according to the number of backfills for the sample, and you can decide on the choice of the filler after the solution has dried so that you can evaluate the degree of whiteness.

Recommendations for proportions: the ratio of the components should be the same as when working with gray cement - 1 to 3 for masonry mortar or concrete for self-leveling floors, and 1 to 5 for leveling plaster. The ratio of water and cement should not be more than a coefficient of 0.

4, that is, the solution should be dense in consistency, but perfectly mixed.

Recommendations for preparation: White concrete requires 1 measure of cement, 3 measures of sand and 2 to 3 measures of coarse aggregate. If concrete is required for pouring the floor, then use marble chips with a fraction of 1 to 1.5 cm as a filler. After the concrete has received its grade strength, sand the surface to perfect condition.

Please note, that we make concrete only in a clean mixer, on the walls of which there is no old mortar or formed rust.

Scope

White cement is used for various purposes:

  1. Production of joint grouts. since the strength indicators are high, white cement is used in order to make joint grouting.

    Gypsum or crushed chalk is added to the grout as a filler. The setting speed of the composition will depend on the type of filler.

  2. Making a mixture for masonry mortar. To make the decorative type of finishing masonry look more beautiful, a composition is used as a solution, which is made on the basis of white cement. The consistency of the masonry mortar should be the same as the usual mortar, the difference is only in the color.
  3. Reinforced concrete products (concrete goods). White cement is required for stair treads as well as railings, tiles and all kinds of architectural forms.

  4. Paving slabs and related elements. Paving slabs, concrete rings, curbs and so on are made from a solution of cement and sand. Such products must be either completely white or painted with special dyes.
  5. Finishing brick. This is a special type of cladding that is used for wall decoration.

    The tiles are made from a white cement based mortar, without the addition of dyes or with the addition of pigment.

  6. Self-leveling floor solutions. Dry mixes with the addition of polymers can be made from such cement.

    After adding water, add marble chips or any other decorative filler to the mixture. The mortar should be evenly distributed over the floor, and after drying it should be sanded and polished.

  7. Mortar for exterior finishing. Cement can be used to make dry plaster mixes. The advantage of such compositions over others based on gypsum is high strength and weather resistance.
  8. Sculpture making. Cast sculptures are made of white cement and are planned to be installed in the open air.

    Such sculptures, unlike plaster products, will last at least 10 years.

Conclusion

Now you have learned about what white cement is and how you can use it in construction. More information can be found in the video.

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